Study on Detection of Damage Depth of Concrete after Fire Using Ultrasonic Impulse-echo Method

摘要：

Detection the damage depth is important to comprehensive assess the damaged level of concrete structure after fire. For the shortcoming of conventional nondestructively detection method, the principle and superiority of detection the damage depth using ultrasonic impulse-echo method is discussed. Based on the superior character of wavelet transform, collected signal analyzed by the wavelet transform, the characteristic information of damage depth is picked out. The damage depth of concrete structure after fire can be detected accurately and quickly using the ultrasonic pulse-echo method. It is proved that the efficiency detection concrete structure after fire is promoted using the ultrasonic impulse-echo method by experiment.

关键词： after fire damage depth ultrasonic pulse-echo concrete wavelet analysis singularity detection

作者: CHEN Min XU Zhisheng ZHAO Wangda

作者单位: School of Civil Engineering and Architectural,Central South University,Changsha 410075,Hunan,China;S School of Civil Engineering and Architectural,Central South University,Changsha 410075,Hunan,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 796-800

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）